你的快读呢（huaji）
by かなで @ 2018-04-30 17:06:49
@[zhaomingrui](/space/show?uid=70185)
by かなで @ 2018-04-30 17:06:56
快速读入了解一下（huaji.jpg
@[zhaomingrui](/space/show?uid=70185)
by yjxyjx @ 2018-04-30 17:28:15
# O(2)+O(3)
# 暴力变正解
by arfa @ 2018-04-30 18:32:02